Apparatus for surface treating



rJune11,'1935. F A, BEST '2,004,364

FINISHING STRIP Filed Jan. 6, 1955 Patented Oct. 4, 1938 UNITED STATES PATENT OFFICE APIARATUS FOR SURFACE TREATING LIETAL ARTICLES aware Application July 10, 1935, Serial No. 30,600

12 Claims.

This invention relates to apparatus for surface treating metal articles.

The invention relates particularly to apparatus for cleaning, hardening, roughening or otherwise treating the surface -of metal sheets, billets and other metal articles by the abrasive effect of a stream of abrasive particles projected against such surfaces at relatively high velocities.

In the abrasive-treating of the surfaces of metal articles, I propose to employ one or more rotary abrasive-throwing wheels, so mounted that the wheels may be easily manipulated so that the thrown abrasive will most effectively and advantageously'attack the work. The apparatus herein described can be economically and effectively used in various treating operations, such as cleaning, hardening and roughening metallic sheets, billets and other hard objects.

Where a rotary wheel is employed, it is desirable that the wheel and associated apparatus for handling the articles to be treated be so designed as to be compact and rugged, and permit the obtaining of the maximum utilization of the wheel or wheels, and at the same time permit considerable flexibility in the operation thereof, so that articles of various sizes may be treated in a single installation.

In apparatus of the class to which this invention relates, it is especially desirable that the m abrasive-throwing wheels be disposed along the path of travel of the articles along a. production line so that all of the surfaces of the articles may be treated in the course of a single trip through the apparatus, thus permitting maximum speed of 35 operation and maximum efficiency of the apparatus. y Another desideratum of this class of apparatus is that the apparatus should be adaptable to operate with maximum eiiiciency upon sheets, billets 40 or the like of various sizes, with simple adjustment, whereby a minimum amount of apparatus may be employed in a mill producing a large variety of sizes of articles.

'I'he present invention concerns apparatus com- .fs prising a conveyor for transporting articles such as sheets and billets along a predetermined path, and a plurality of abrasive-throwing Wheels mounted adjacent the conveying means in positions to project the abrasive against all surfaces 50 of the sheets or billets.

Another feature of the invention is the provision of suitable mounting means for the wheels, whereby they may be adjustably positioned .to change the positions of the abrasive streams rela- 55 tive to the respective surfaces ofthe articles to be treated, thus permitting maximum utilization of the abrasive streams .projected by the wheels.

Another feature of the invention is the provision, in one embodiment of the invention, of an arrangement of a plurality of wheels so arranged that a minimum number of wheels are adapted to treat a plurality of sheets or billets.

Various other features and advantages of the invention will be apparent from the following particular description and from an inspection of 10 the accompanying drawings, wherein:

Fig. 1 is a top plan view of an apparatus constructed according to the invention;

Fig. 2 is a side elevational view of the apparatus .in Fig. 1; 15

Fig. 3 is an enlarged vertical cross-section, taken along the line 3--3 of Fig. 2;

Fig. 4 is a vertical section taken along line 4-4 of Fig. 3;

Fig. 5 is a top plan view of a portion of the ap- 20 paratus shown in Fig. 4; A

Fig. 6 is a horizontal cross-sectional view taken along the line 6--6 of Fig. 4;

Fig. 7 is an enlarged vertical cross-sectional View of the abrasive throwing wheel, this view being taken along the line 1-1 of Fig. 3;

Fig. 8 is a diagrammatic view of the apparatus, illustrating the manner in which the wheels may be arranged when relatively Wide sheets are to be cleaned;

Fig. 9 is a diagrammatic side elevational View of the apparatus shown in Fig. 8;

Fig. 10 is a diagrammatic vertical cross-sectional view of an apparatus showing an arrangement of wheels for simultaneously treating the face and the edges of a sheet or plate; and

Fig. 11 is a fragmentary view, partially in crosssection, cf another device for cleaning the edges i of sheets or billets.

In the drawings accompanying and forming part of this specification, certain specific disclosure of the invention is made for purposes of explanation, but it will be understood that the details may be modied in various respects without departure from the broad aspect of the invention.

The apparatus illustrated in Figs. 1 to 6, inclusive, shows a conveyor C adapted to' transport horizontally a pair of sheets or billets S1 and Sz past two spaced abrasive wheel assemblies W, each consisting of three wheels 50, |50 and 250 (Fig. 4), adapted to project streams of abrasive against both sides of both of the spaced sheets and past a plurality of spaced. edge-treating mechanisms V, each having a wheei 350 adapted at the other longitudinal edge of the reinforcing strip.

In the process of construction the reinforcing strip B after being formed is assembled with the fillers C and D upon the body part I2 of the basic strip beneath the folded portions I `and 2 so that the Wire area shall extend across the line J of fold in the fabric. As shown, this line J extends longitudinally of the strip A substantially midway between opposite longitudinal edges thereof, consequently such line extends across the wire threads 4 When the finishing strip is applied thereto. As a result when the strip A is folded along said line J it will retain its folded form but will be sufficiently pliable to be readily bent longitudinally along one or more lines extending transversely thereof so that it may readily conform in shape and be applied to curved or rounded surfaces or edges.

Thus from the foregoing it Will be apparent that less wire or metal is used as a reinforcement and that a material saving in expense and manufacturing costs has been effected. Moreover, in this construction the reinforcing strip B is formed separately and may, therefore, be used as shown or alone or with other strips or materials as desired. The basic f abrio A is entirely devoid of Wire or the equivalent, hence can be more expeditiously and economically manufactured. Moreover, such basic strip A may be readily assembled with the reinforcing strip B Without cutting wires or composite fabric as heretofore. As a resultl there are no projecting ends or rough edges. In fact, the folded portions I and 2 of the basic strip A overlap opposite longitudinal edges of the reinforcing strip B in such a Way that the same stitching I0 and I I employed for fastening the portions I and 2 to the body part I2 of the strip A is utilized for holding the reinforcing strip B in assembled relation with the body part and fillers C and D.

What I claim as my invention is:

l. A fabric reinforcement comprising a pliable woven strip having warp threads formed of fibrous material and having Woof threads formed of metal, `the Warp threads being close together and forming a tape, and the Woof threads having portions arranged in pairs as spaced points longitudinally of the tape and having nested loop porf tions connecting the portions aforesaid and projecting laterally from but opening toward opposite longitudinal edges of said tape.

2. A fabric reinforcement comprising a pliable Woven strip having Warp threads formed of fibrous material and having Woof threads formed of Wire, the Warp threads being close together and forming a tape of uniform width throughout its length, and the Woof threads having portions arranged in pairs at spaced points longitudinally of the tape and having return-bent portions connecting the portions aforesaid and projecting laterally from but opening toward opposite longitudinal edges of said tape.

3. A fabric reinforcement comprising a pliable woven strip having Warp threads formed of brous material and having Woof threads formed of two wires, the warp threads being close together and forming a tape, the Woof threads formed from one of said Wires having portions arranged in pairs at spaced points longitudinally of the tape and having return bent portions connecting the portions aforesaid and projecting laterally from but opening toward opposite longitudinal edges of said tape, the return bent portions at one edge being uniformly small, and the return bent portions at the other edge being uniformly large, and the Woof threads formed from the other of said Wires having portions arranged in pairs between the pairs aforesaid and having returnbent connecting portions projecting laterally from but opening toward opposite longitudinal edges of said tape, the return-bent portions of the second wire at one edge being uniformly large and enveloping the small return-bent portions of the first Wire, and the return-bent portions of the second Wire at the other edge being uniformly small and enveloped by the large return bent portions of the first wire.

FRANK A. BEST. 

